Overview
Bonemass is one of Valheim's environment / weather states, identified internally as Bonemass. Force the world into this environment with the cheat command env Bonemass, and return to natural cycling with resetenv. Environment changes are useful for screenshots, testing biome-specific events, or just resetting bad sailing weather.
About
Bonemass is the boss-fight environment that activates during the Bonemass encounter in the Swamp. It applies thick green fog and persistent rain visuals around the Forsaken Altar.
Commands
Sets the current environment to Bonemass.
Resets the environment to its natural state.